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User-Agent: Mozilla/4.79 [en] (X11; U; Linux 2.4.18-5 i686)
Description of problem:
After a kickstart which had "start X on boot" but no configuration for the
graphical component, the computers try to start X and then fails. After logging
in, I tried to run redhat-config-xfree86, and it refused to start, giving an
error about not finding the correct module. After copying a known good
XF86Config, I could start redhat-config-xfree86.
Version-Release number of selected component (if applicable):
How reproducible:
Always
Steps to Reproduce:
1.kickstart machine with startxonboot, but do not configure the graphics
2.boot (and fail to get into runlevel 5)
3.log in and run redhat-config-xfree86
Actual Results: Program refused to start, and gave error message (which I
forgot to write down); something about device not loaded
Expected Results: the config tool should have started
Additional info:

It tries to first use the existing config file, but then tries to do a new one
from scratch. I have to have more information to figure out why it failed in
your case. Could you retry and save the full output and the X logs?